Testing Relativistic Effect of Propagation of Gravity by Very-Long Baseline Interferometry

Details Testing Relativistic Effect of Propagation of Gravity by Very-Long Baseline Interferometry Testing Relativistic Effect of Propagation of Gravity by Very-Long Baseline Interferometry

2001-05-17

arxiv.org/abs/gr-qc/0105060v2

Astrophys.J. 556 (2001) L1-L6

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, accepted to ApJ Letters

Scientific paper

10.1086/322872

It is shown that the finite speed of gravity affects very-long baseline interferometric observations of quasars during the time of their line-of-sight close angular encounter with Jupiter. The next such event will take place in 2002, September 8. The present Letter suggests a new experimental test of general relativity in which the effect of propagation of gravity can be directly measured by very-long baseline interferometry as an excess time delay in addition to the logarithmic Shapiro time delay (Shapiro, I. I., 1964, Phys. Rev. Lett., 13, 789).

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